Numbers
Science & Math · Unknown · 30d uptime 100%
REST API access to every number tool on Math Tools — number theory checks, numeral system conversions, cardinal/ordinal/currency spelling, base conversion, digits of pi, and more. JSON responses, authenticated with a personal access token.
Trust signals
Pricing
FREEMIUM
Auth
API_KEY
CORS
No
Rate limit
Unknown
Health
1448ms
Trust score
81 (B)
Strong candidate; weakest signal is CORS.
Links
- Base URLmath.tools/api/numbers/
Integration checklist
- Auth is API_KEY
- No CORS — route calls through your backend.
- Rate limit: Unknown